Articles tagged with Photochemistry
Researchers found that combining zinc oxide with small-molecule UV filter ingredients reduced UVA protection by 84.3-91.8% compared to non-mineral sunscreens. The study also showed toxic effects on zebra fish embryos when exposed to sunscreen mixtures containing zinc oxide.
Researchers at Dalian Institute of Chemical Physics used the Dalian Coherent Light Source to study vacuum ultraviolet water photochemistry, identifying rotationally hot OH radicals. Highly excited 'super rotors' were observed from water photodissociation at 115.2 nm, revealing interesting dissociation mechanisms.
Researchers measured urban nonmethane volatile organic compound flux, finding oxygenated compounds account for a significant portion of unaccounted emissions. Current atmospheric chemistry and climate models may underestimate global anthropogenic NMVOC emissions due to this unexpected large proportion.
Researchers found that beach umbrellas intercept direct sunlight but allow diffused ultraviolet radiation to pass through, with canvas having high absorption capacity. The study aims to improve understanding of skin cancer epidemiology and provide guidelines for UV protection.
A study published in Photochemistry and Photobiology explores the potential of light-sensitive drug delivery systems for targeted therapy. The research reveals that near-infrared light can trigger medication release without causing significant heating or damaging surrounding tissues.